Malicious PDF — malware analysis report

Static analysis result for SHA-256 6df4d3c602035666…

MALICIOUS

PDF

143.4 KB Created: 2021-12-01 14:04:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: 2e4511a971ea173b3c356a0f0eade7e4 SHA-1: 8e6e4cbf31f545477354fcac34b3418b72338fa8 SHA-256: 6df4d3c6020356662d9b2f73fbb7d60d07a340b11c5db693755868293723f7a1
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9631

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16156e9446a8c5---vetumelopufotuk.pdf In PDF document text
    • https://ecoolteh.eu/galeria/file/rotewu.pdfIn PDF document text
    • http://kingsauto-bar.com/js/upload/files/76045328569.pdfIn PDF document text
    • https://socardan.com/userfiles/files/jinubiwilofafewupewupumi.pdfIn PDF document text
    • https://www.funes.gob.ar/ckfinder/userfiles/files/biwunizanakef.pdfIn PDF document text
    • http://dongduong.net/Images_upload/files/gelureku.pdfIn PDF document text
    • http://pokwuttibut.com/file_media/file_image/file/raxafonatat.pdfIn PDF document text
    • http://innotec-industrie.be/userfiles/file/81699848694.pdfIn PDF document text
    • https://pepsima.biz/files/file/35303539438.pdfIn PDF document text
    • http://progettocecinacuore.it/writable/public/userfiles/file/24241152752.pdfIn PDF document text
    • https://phs1267.com/singhania/downloads/file/nulonitinelefaxinokidif.pdfIn PDF document text
    • http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/1618335fbd4ac5---41468992974.pdfIn PDF document text
    • http://daotaonhaccong.com/uploads/userfiles/file/54873057884.pdfIn PDF document text
    • http://euromarkcreations.com/new/fck_img/file/18767632147.pdfIn PDF document text
    • https://stef-nancy.fr/upload/document/58437639313.pdfIn PDF document text
    • http://caratow.eu/userfiles/file/guvapisizik.pdfIn PDF document text
    • https://lazeo.nl/userfiles/file/riputazumemepi.pdfIn PDF document text
    • https://ipekyolumedya.com/resim_galeri/file/62669177393.pdfIn PDF document text
    • http://littlepearlspublishing.in/data/eimages/file/metofafumu.pdfIn PDF document text
    • https://luyenthitoeic.info/userfiles/file/31033237519.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/14bd67c297a5ab3f8a1050a50b58f8e6/xidubavosu.pdfIn PDF document text
    • http://klubbelgickychobrov.sk/editor_uploads/files/25371006735.pdfIn PDF document text
    • https://ganport.pl/userfiles/file/62726629910.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/7xhmvLXWVJc/uplcv?utm_term=1999+yamaha+grizzly+600+service+manuPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0001cfc3.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001cfc3.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001cfc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CFC3 17904 bytes
SHA-256: e12e1f384cb4eb00bafe363ac36e785c6c05b16a596a59450a0ec6243e175341
font_01_sfnt_off0001fdf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FDF5 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00021499.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21499 11212 bytes
SHA-256: ced6d9c970e7da1f67d5a696f3f892f61fd94e4eab600a0f9f51e8f063ca6d0a